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English Senior High

こちらのプリントの回答教えてください。 よろしくお願いします。

4 eehaupbsorl elstog 空欄にあてはまるものを (A)~(D) の中から選んで記号を書きましょう。 rinom soon tundA (8) 1. My first of Toronto was very positive. (A) impressed (B) impressing (C)impressive (D) impression swdua vd oo visuay 1 (5) 3. 2. The special equipment was (A) originally (B) origin (C) original (D) originality 4. The manufacturer (A) produces vaboj alriemriserter prind soinom bib vilW..t A teacher's class. Sum ob incinu vertone (A) friendship (B) friendlily (C) friendly (D) friendliness Autoledad blow approach makes new students feel comfortable in their new es new students fee (B) has produced shwob trand enirkham y 5. It is necessary that the applicant 8. Would you mind (A) open made for those who have mobility problems. mismo2( bloo out a'fariT (8) Of(0) tripim men (8) TV sets in developing countries ten years ago. (D) has been produced (C) produced (A) fill (B) filled (C) fills (D) would fill 6. Tomoko invited me to see the musical with (A) she (C) (B) heraners 10. Is there anyone (A)whom blueWF Tesy jasi cio 7. The CEO by the charity foundation to speak at their annual conference, but he had to decline the request because of a scheduling conflict. (A) asked (D) had been asking (B) was asked (C) has asked 9. The meeting will be held (A) in dar out the form before the job interview. toy bollit need cen (A) admun orong olidam ym e'evgH (8) Jeneves need even ment (2) eldabil opening prupiolansi (B) whose blow reiwi at sol no (D) herself them. the window for me? vietne.m (C) to open (D) to be opening Houp (0) (B) on (C) for (D) at nismen (0) Meason (2) gribnstalue (8) 10:30 in the conference room. is against this alternative proposal? (D) which m) boysin .GP .er Deda briced OS eldialval (A) 11. Tim is as as Linda. (A) more intelligent (B) intelligent (C) less intelligent (D) better intelligent for storage. (A) designated (B) detained (C) reciprocated (D) signified 12. According to the proposal, a large block of rooms in the east wing of the new building will be

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English Senior High

こちらのプリントの回答教えてください。 よろしくお願いします。

4 eehaupbsorl elstog 空欄にあてはまるものを (A)~(D) の中から選んで記号を書きましょう。 rinom soon tundA (8) 1. My first of Toronto was very positive. (A) impressed (B) impressing (C)impressive (D) impression swdua vd oo visuay 1 (5) 3. 2. The special equipment was (A) originally (B) origin (C) original (D) originality 4. The manufacturer (A) produces vaboj alriemriserter prind soinom bib vilW..t A teacher's class. Sum ob incinu vertone (A) friendship (B) friendlily (C) friendly (D) friendliness Autoledad blow approach makes new students feel comfortable in their new es new students fee (B) has produced shwob trand enirkham y 5. It is necessary that the applicant 8. Would you mind (A) open made for those who have mobility problems. mismo2( bloo out a'fariT (8) Of(0) tripim men (8) TV sets in developing countries ten years ago. (D) has been produced (C) produced (A) fill (B) filled (C) fills (D) would fill 6. Tomoko invited me to see the musical with (A) she (C) (B) heraners 10. Is there anyone (A)whom blueWF Tesy jasi cio 7. The CEO by the charity foundation to speak at their annual conference, but he had to decline the request because of a scheduling conflict. (A) asked (D) had been asking (B) was asked (C) has asked 9. The meeting will be held (A) in dar out the form before the job interview. toy bollit need cen (A) admun orong olidam ym e'evgH (8) Jeneves need even ment (2) eldabil opening prupiolansi (B) whose blow reiwi at sol no (D) herself them. the window for me? vietne.m (C) to open (D) to be opening Houp (0) (B) on (C) for (D) at nismen (0) Meason (2) gribnstalue (8) 10:30 in the conference room. is against this alternative proposal? (D) which m) boysin .GP .er Deda briced OS eldialval (A) 11. Tim is as as Linda. (A) more intelligent (B) intelligent (C) less intelligent (D) better intelligent for storage. (A) designated (B) detained (C) reciprocated (D) signified 12. According to the proposal, a large block of rooms in the east wing of the new building will be

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Mathematics Senior High

この問題の(3)の解説の線引いてあるところの変形がよくわからないので教えていただきたいです🙏

13 奇偶で形が異なる漸化式 数列{an} を次の条件 (i), (ii)により定める。 (i) α = 1 である. (i) =1.2.3, ··· に対し, "が奇数ならば 0%+1=-α+1, "が偶数ならば 0x+1=-20+3である さらに, 数列{bn} をbn=a2n-1 により定め, 数列{cm} を Cm=az" により定める。 次の問いに答えまし (1) az, as, as, as を求めよ. (2) 数列{bn}, {cm}の一般項をそれぞれ求めよ. (3) 自然数に対して, 数列{an}の初項から第 (2m-1)項までの和を Tm とする. T (広島大・文系) 用いて表せ. の奇偶で形が異なる漸化式は, "=2k-1, n=2kとおいて、奇数 奇偶で形が異なる漸化式 ••••••) どうしに成り立つ漸化式, つまり、1 を で表す式を立てて解き, もとの漸化式に戻って て azn を求める。 ■解答量 (1) =1 nが奇数のとき, an+1=an+1. nが偶数のとき, an+1=-2a+3 ① で n=1 として,=-α+1=0, ② でn=2として, x=-2a+3=3 ①でn=3として,,=-2+1=-2, ②n=4 として,αs=-2a+3=7 (2) by=azu-1 より bn+1=02n+1 であり、②のnを2にして. bn+1=0zn+1=-2azw+3 ①のnを2-1にすると, @2n=-Q2n-1+1...... なので,③=-2(-2月-1+1) +3=24z-1+1 bm+1=2bm+1 bn+1+1=2(bm+1) bn+1=2"-1 (by+1) by==1より, bn=2"-1 ④より、C=Q2=Q2月-1+1=-bx+1 =-2+2 (3) ④ より 2-1+02月=1なので、m≧2のとき --'a₂=2(a₂-1 + a₂n) + a₂m-1= [ {1+bm =(m-1)+(2m-1)=2"+m-2 (m=1のときもOK) 3) 奇数項についての漸化式 て奇数項を求める。 数項からすぐに分かるので 項についての漸化式は 要はない。

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